The group, which reportedly has about 20,000 members, targeted Schumer and Gillibrand for the protest because the two are co-sponsors of PIPA. The protesters, which police corralled into metal barriers on a sidewalk in front of the senators' Manhattan offices, called for Schumer and Gillibrand to withdraw their support for PIPA -- a move a few politicians took on Wednesday amid the widespread online actions against the proposed laws.

While lawmakers in support of SOPA and PIPA have said that the bills are written to protect against online piracy and theft of American-made films, TV shows, music and other digital goods, those against the bills say the legislation would open the door to online censorship that would essentially ruin the free flow of information on the Web.

Andrew Rasiej, chairman of the New York Tech Meetup, told the New York Daily News that not only would SOPA and PIPA open the door to censorship of the Internet, but the laws would also have negative effects on the ability of the U.S. to remain a leader in the global tech industry.

"Because a new innovation by a start-up could be interpreted by a judge unfamiliar with how the technology works as infringing on copyright, investors and entrepreneurs would be discouraged from moving forward with a start-up due to a significantly increased risk of legal entanglement," Rasiej told the New York Daily News. "This in turn would dampen job creation and future opportunities for New Yorkers and Americans as a whole."

Photo: People gather outside the offices of two U.S. senators from New York, including Sen. Charles "Chuck" Schumer, to protest against proposed laws to curb Internet piracy. Credit: Stan Honda / AFP/Getty Images